The police found the bodies of a man, his wife and their three children at their house in the Ghafoorabad town of Chiniot, Punjab, on Saturday.
The 35-year-old man was identified as Muhammad Aijaz and the woman as 32-year-old Rubina. The children were identified as a five-year-old boy and two girls aged four and three.
The police believe the man shot his wife and children and then committed suicide. They are investigating to find out what happened.